First time I used this, I had no issues. The second time, I was grinding some pork sprinkled with some ground spices. After grinding about 3 lb, the plastic ring used to hold in the blade and the circular metal plate with the large holes exploded off the attachment along with the blade and the metal plate. The plastic ring snapped in two! :/

I was grinding on speed “stir”. I’m not sure what I did wrong but somehow too much pressure must have build up behind the plastic ring. I was not forcing the meat through the attachment, it was grinding very smoothly and easily...until it suddenly didn’t and exploded.