Smaller packs are not effective.
You have reduced the size of the 300cc packs and claim they are just as effective.  This is simply not true.  Once the package of 10 has been opened, the little supplied indicator changes color from pink to purple in about 3 days even when vacuum sealed in a glass jar.  Never had this trouble with the larger 300cc packs.  I wont be buying these again.
Rating: 1 stars