Shakes are tasting like bad milk

Anyone ever find the shakes taste differently after a few days..

Leaves like a bad milk taste and I am beginning to hate the aftertaste..

Yesterday It was my last day on the shakes. I found them much better than I expected once I put them in the blender instead of just stirring them. It sounds like your surgery day is close, good luck!

Surgery must be really close for you? Monday?

They aren't the best things in the world, that's for sure!

How are you preparing them? Everyone here recommends really cold water and ice at minimum. Beyond that, you can flavour however you want. You can do a search for Opti do find lots of great previous recommendations.

Personally, I've been making them with 200 ml of cold water, 200 ml of refrigerated brewed decaf coffee and ice. I use a shaker bottle.

That doesn't sound very good :( Do you blend or stir? I personally would blend ice into mine. Drinks always taste best when ice cold. I know a lot of people also use sugar free syrups

Opti blended with ice and a tablespoon of orange Metimucal tasted great in both the chocolate and vanilla.

surgery is on Sept 1st..and I blend mine in a blender..ice and cold water

Add a tsp of pure cocoa powder.

Do you mean opti shakes? If so, that never happened to me. I bought several cases of premier shakes at Costco before surgery and some of them went off though, I had to throw them out. I buy the smaller packages at Walmart in the US now and they've been fine.

I blend the Optifast chocolate shake with cold water, ice cubes and some cinnamon. Tastes really good.