Tobacco Documents Online

CATEGORY a S~fe Cigarette q969 A discussion followed on the criteria which might be adopted in considering new smoking materials, modified cigarettes with health orientation, and changes in commercial cigarettes. It was agreed that the criteria included: (i) (ii) (iii) (iv) (v±) House-skin painting Hyperplasia tests Chemical analyses for carbon monoxide and other gas phase components, as well as other chemical substances, e.g.,~ benzpyrene. Goblet cell test Cytotcxicity tests Ciliastasis and parameci'am tests. It is foreseen tha~ the use of reconstituted tobaccos will increase both for economic reasons and on health grounds, despite the possibility of increased carbon monoxide production. It also appears likely that some of the non-tobacco binding materials are becoming more attractive. Dr. Seehofer agreed to supply samples of cigarettes, made by a variety of reconstruction processes from a single blend of tobacco, for submission to the hyperplasia and other short-term bio tests. Dr. Fordyce also offered to send,some cigarettes containing non-tobacco binders. Dr. Hughes suggested that R. ~nd D. might examine the combustion characteristics by thermo gravimetric analysis and other techniques. The proposal that ethanol-extracted tobacco might be combined with one of the non-tobacco binders was accepted and Dr. Seehofer undertook to arrange a supply of such a product at the optimal sheet thickness. This mea~s in the long run that the basic technology of the cigarette industry will move more into the realm of chemical engineering, and this could have important effects on many other Company activities. BATCo document for Province of British Columbia 8 November 2000 BATCO 00290347

CATEGORY 4 2. q969 The Conference considered what the characteristics of the "safest" cigarette might be, in terms of the criteria established earlier. It would contain some or all of the £ollowing features: (a) Reconstituted mr.d/or non tobacco smoking materials (b) CRS treated by the St. Pauli or si~ilar process (c) tobacco bearing additives to modify combustion (d) a ~riple filter containing carbon and possibly water, sodium carbonate, manganese dioxide (e) possible construction as an axial and/or ventilated cigarette It was decided to accept as a research objective that such a prototype cigarette should be developed. When it is judged to have sufficient acceptibility of taste as a prototype product, it should be manufactured on a scale sufficient to permit complete bioassay. Dr. Hughes agreed that R. and D.E., Southampton, would undertake this, and Dr. Seehofer offered to supply stems treated by the St. Pauli process. BATCo document for Province of British Columbia 8 November 2000 BATCO 00290348

CATEGORY ~ Smoking Characteristics ~969 The Conference reviewed the progress of studies of smoking behaviour in the U.K., U.S.A., and Germany, carried out since the last meeting and concluded that these were important not only from the aspect of smoking and health~ but also because of the light shed on market requirements. For example, it has been indicated that smoking consumption tends to vary with the bodyweight, which might lead to the suggestion of lighter, thinner cigarettes for women; there is also some evidence that hearD" smokers tend to maintain their intai~e of smoke constant, even when the size of the cigarette or its delivery of TPM is changed. If thi~ finding were to be con£i2med,.it would be a matter of great significance, particularly in relation to the social objectives in publishing TP~I figures. In view of the likelihood that smokers may modify their smoking habits when presented with impingement filters, ventilated and other unconventional filters, it was suggested that these products should be evaluated using a "slave" smoking machine and a number of humau subjects. A general discussion on the problems of product design ~nd sensory assessment concluded that professional psychology could play an important part in this field, particularly if integrated into research pro~ramme~ along with other disci ~lines. BATCo document for Province of British Columbia 8 November 2000 BATCO 00290349

CATSGOEY 5 2. q969 Owing to the trend towards reduced TPM and nicotine, it was agreed that more attention must be ~iven to flavour. It was, however, pointed out that in some situations the maintenance of nicotine delivery at the normal level may overcome taste and flavour deficiencies due to low TPM. The use of non-tobacco materials would accentuate this problem. The use of finely-cut tobacco and tobacco extracts in the filter in order to enhance the flavour are worthy of further consideration. BATCo document for Province of British Columbia 8 November 2000 BATCO 00290350

P:'. Gr'iffith ez~rez.~ed the vie;.: that I{.E.W. ncc~pt that a mou[c.-skin za_~c~• cigarette is a ;..'or'th:;hile objective and th~ Conference reaffir~Jed their opinion thaZ this '~'?.~ ~ ;.:orth~.:hile objective 0 0 0 BATCo document for Province of British Columbia 8 November 2000 BATCO 00290351

Production ~969 The work on the microbiological flora of ~obacco has been started at R. and D.E., Southampton. So far, there would appear to be no danger from bacteria, but work was continuing on moulds where there might be a hazard associated with mycotoxins. Dr. Sanford said that Louisville was in agreement with this view. There followed a full discussion on the application of Research and Development techniques for Product Development. It appears likely that Philip ~]orris, in particular, are more successful in this than B.A.T. Dr. Griffith adversely compared the general position of Research in the B.A.T. Group with that in Philip Morris. He reported that Philip Morris are currently doubling their expenditure and stated, for example, that they are using low resolution mass spectrometry techniques to determine how to utilize Venezuelan tobaccos. Following an account of the similarity between the changes which can be brought about by processing conditions, and those attributable to ageing, the meeting felt that considerable caution should be exercised in reducing holding times in the tobacco process, and in terms of tobacco durations, merely to gain short-term economic advantages in terms of inventories etc. Nevertheless, there may be present an opportunity for the development of methods of accelerated ageing. BATCo document for Province of British Columbia 8 November 2000 BATCO 00290352

~' ~ .... q969 Freeze-drying of tobacco was discussed, particularly in the light of the recent publicity from the University of North Carolina. The process is in a very early stage of development, and is unlikely to become of any importance for the next few years at least. It concluded, however, that such a process might affect the combustion characteristics of tobacco~ and it was agreed that R. and D.E., Southampton, should ez~lore the effect of this and of other processes in this respect. Consideration was given to the interestin5 proposal :,dvanced by Dr. Smith of lq,ntreal for the ozone treatment of tobacco and the conclusion was that R. and D.E., should consider this as pars of their 5eneral programme of investi~atin~ the effects of various tobacco treatments. N~. Wade reported on the progress made at Bristol on the irridation of tobacco for mould inhibition. This work is continuing. BATCo document for Province of British Columbia 8 November 2000 BATCO 00290353

Marketing [he Meeting agreed that, in general, a substantial reduction in TPM (e.g. from 75 mg to 40 mg) will lead to considerable differences in taste and that these differences will be observed particularly when the observers are aware that changes have been made; however, as far as the reaction of the smoking public is concerned, it may be possible to make such changes without significant reaction, especially if these are made slowly. In discussin~ the possible taste deficiencies associated with low TPM cigarettes, Dr. Fordyce suggested that attempts might be made to express sensory responses in terms of intensity per unit weight of TPM. General opinion was that further filter development should be aimed largely at changing the composition of the smoke in a desirable sense, instead, of merely reducing the total quantity of smoke. The Conference agreed that I'iontreal should be encouraged to pursue their suggestion on the treatment of tobacco with sodium silicate in order to alter smoke characteristics. Dr. Fordyce described the treatment of Australiam tobacco with ~% citric acid in an autoclave for short periods of about 2 minutes, and the benefits conferred on the smoking qualities. The irritation of the smoke was reduced, and there was a marked increase in the filling power of the tobacco. Dr. Fordyce will send details of this process to members so that the effect on a wide variety of tobaccos can be investigated on BATCo document for Province of British Columbia 8 November 2000 BATCO 00290354

CATEGORY 8 2. ~o~ the laboratory scale. The Conference agreed that this could represent an opporttnuity for co-ordinated action by the Group, which could obtain results more quickly and over a wider rauge than those which could be achieved by any one Company. It was agreed that, if the process continued to look promising R. and D.E.,Southampton,, would make a more detailed study of the effects on smoke quality; Dr. Sanford also offered, subject to B. and W. Management approval, to carry out a theoretical study of the scale-up of the process. It was agreed further that Australia, Southampton and Louisville should consider the patentability of this process in various countries. BATCo document for Province of British Columbia 8 November 2000 BATCO 00290355

CATEGORY 9 Filters ~969 There was a full discussion on the use of PEG as ~ additive to filters to e~_hance The removal of phenol(s) mnd the Conference agreed that it would be generally desirable to continue its use, although it was recognized that cost savings could clearly be achieved if it were eliminated. The substitution of extra triacetin for PEG is not as effective in phenol removal over a long period. It was interesting to learn from Dr. Fordyce that consumer tests showed a preference for filter tip cigarettes containing PEG; results from Canada and Louisville tended to confirm this. Because of the German Food Regulations, PEG is not used on filters in Germany. There was a discussion on the use of DEG, and, while the Conference appreciated the special position in Germany, it endorsed the AGP recommendation. Dr. Seehofer pointed out that the DEG used was subject to a rigidly specified limit of O.O~% monoglycol. ~%ile it was recognized that the AGP Minutes should not include the secientific detailed reasons for the recommendations, Dr. Felton agreed to supply the background scientific references to the decisions for the use of research staff. The Conference considered the bioassay results of PEI-treated filters, and although these are somewhat inconclusive, suggested an upper limit of 3% weight of the filter. The Conference confirmed its belief that the trend towards multiple filters, including carbon filters, would continue. This should achieve lower gas phase deliveries. In this connection, the idea put forward by Dr. Smith of Montreal on mixed-bed.filters with coincident specificity was considered well worth pursuing. ~r. Wade agreed to follow this up and to e~lore the patent situation. BATCo document for Province of British Columbia 8 November 2000 BATCO 00290356