How do I handle my step dads explosive reaction?

It is a long story, so I'll try to summarize. On Christmas, my sister and I told my mom and step dad we were hesitant to eat the food my mom made because it had been sitting out at room temperature for a very long time. We know my mom worked extremely hard and we didnt discount that. My step dad had an extremely explosive, and verbally abusive reaction to this. He verbally abused my sister and I, screaming at us, telling us we ruined christmas, and saying very very mean things to us. I have never been spoken to that way before in my life, and I wont stand for that. Ultimately, they kicked us out of the house because we didnt eat the food they made. I know we upset my mom but he had absolutely no right to speak to us I the way that he did. To add, my mom and stepdad were most likely very tipsy or drunk, they drink a lot on a daily basis. So this is where I'm conflicted. I dont know where to go from here. My sister and I are going to meet up with my mom and talk things out with her. I honestly don't even know if I want to continue my relationship with my step dad because of the way he spoke to us. We don't have a very close relationship, but we see each other every time I go to my mom's, and up until now it has been a normal relationship. I really do not want to go back into that house, knowing what he said, and continue to act normally as if nothing happened. But I know that if I cut him off, then it will obviously effect the relationship I have with my mom. I was thinking of setting a boundary that I will only be around them if they are sober and not drinking. I genuinely just don't know what to do, knowing how he acted towards my sister and I, I wont even be able to look at him the same way ever again.