No. No. No. They have it all wrong.
Cello is extremely important to the storage of all cigars but it must be treated correctly. Carefully remove each and every pesky cello sleeve placed on the cigar at the factory. Be careful to line them up in order. The cello should then be rinsed in a formula of one part vinegar of oalla berry, one part Fiji water, one part Pellegrino. After rinsing both inside and out the cello must be air dried at no more than 65 to 70 degrees. Do not over heat the cello as it will darken or crack. Once the cello is completely dry place it. Once dried the cello must be replace on the cigar but in reverse order; top to bottom, bottom to top. This allows the cello to stretch and breath freely. Carefully place the cigars back into the box in the reverse order that they came out, turning each cigar a quarter turn. Repeat this process every three months for best results.
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Do a search on cello versus no cello and look at what other people said. Not as good as this advice but hey, they might know something