These versatile fine cloth bags have a multitude of uses. For steeping tea that is finely powdered to full tender whole leaf these bags are great. These extra large bags are well suited for carefree kefiring and provide a welcome relief from the daily separating of kurds from grains. Kefir grows faster when those baby grains don't go down the sink! May also be used for Japanese Water Crystals and Tibicos as well.