From: utzoo!decvax!genradbo!linus!lemmon Newsgroups: net.physics Title: Re: Tea Bags Article-I.D.: linus.2206 Posted: Thu Jan 6 10:19:06 1983 Received: Fri Jan 7 02:20:12 1983 References: avsdS.257 alice.1317 Note that the tea bag fills with water (to brew the tea) as well as retaining the original air (now somewhat expanded). The total volume of fluid within the bag therefore increases considerably. I think that this would explain the inflation adequately. Alan Lemmon