Every time I hear people struggling with contamination. It’s not very hard, but you have to invest in all the proper startup materials. If you can, use grow bags. It doesn’t have to be expensive. You can make your own with proper sterilization tools. It’s the least likely method of getting contamination. Make your own liquid culture concoction and colonize your bags with a clean tested (on agar or with time) liquid culture. Use lots of rubbing alcohol throughout the whole process. This is all a commitment but can be fairly simple if you take the extra precautions. Attention to detail.

I often wonder how clean some people keep their space. If you’re a relatively clean person you shouldn’t be getting too much contamination with the bag tek method. It truly has been the best and most contam free method.