[markem]

There is nothing wrong with aging in cello. It is porous and will allow air/humidity exchange. Cello also protects wrappers.

Some sealed plastic bags are also used for aging. If the cigars are at the right RH when sealed, they stay about at that RH while sealed. You do have to open the bags and reseal once in a while because air exchange is important, at least according to many experts.

Boxes and cabs inside humidors and coolers allow for air/RH exchange because the boxes and cabs are porous.

Interestingly, cigars stored in a singles drawer (or open containers) seem to often suffer from having one side with more humidity than the other and can often lead to what many call "canoeing" when smoked.

Finally, tossing out a random quote from someone who wrote a book without providing any information about why the quote should be considered worthy will pretty much always generate sardonic responses for both the quote and the person who thought that tossing out a random quote would somehow convince the world and/or give them cred.

The person who wrote this "ultimate" guide has it all wrong on cello as pretty much all experts and collectors with deep experience will tell you. Actually aging in cello (as many, many here have done) simply proves him wrong. Is there another random quote from the book that explains why his opinion is the correct one in the face of so much evidence to the contrary?

Aging in or out of cello is a preference, not a "do" or "do not" as is aging in a box or a bag or a finely controlled walk in humidor costing tens of thousands of dollars. Ask polite questions, try not to start arguments until you get real experience, and then do what you want provided it gives you the results that you are looking for.