HOW BOVEDA WORKS FOR HERBAL MEDICINE When do you use a 60 gram Boveda? Whenever it fits in your storage container. Boveda will never humidify beyond the RH on the pack, so there's no such thing as "too much". You want to think in terms of using at least the minimum because the more you use, the more efficient Boveda works and the longer they last 67 gram Boveda are commonly used in mason jars and large bags. They can last 6+ months depending on how often the container is opened, you'll know it's time to replace when the entire Boveda begins turning hard. Boveda provides the cleanest and most purified humidity of all other products available on the market today. Note: Do not mix Boveda RH levels within the same container, and do not use Boveda in the same container with other humidification products. They will fight against each other and reduce the efficiency of the Boveda. WHY DO I FEEL SMALL CRYSTALS OR HARD LUMPS INSIDE MY BOVEDA? Our formulas are a saturated salt solution which means an excess amount of blended salts are mixed with water and dispensed into the pouches you receive. From time to time some crystals form during the blending and filling process. This is normal and inherent of salts physical structure but also unavoidable. Although crystals will form, they do not impact the performance of Boveda and are completely safe to use. If the crystals have become too sharp, and in the rare instance puncture the pouch, please notify Boveda and we will replace them at no cost. SPECIFICATIONS Dimensions: 5.2" x 3.5" Shelf Life: 2 years IN THE BOX Boveda 2-Way Humidipak - 67g | 62% | Humidity Control Pack | Bulk Buy Available