Larsi...I tried the Tide from Vietnam you sent me (Thank You a Ton)...now I wanted to really test the ability of this stuff, I didn't want to just do a normal load of laundry that we know would come clean reguardless of what detergent I used so I pulled out the 2 sets of bed sheets from the 70's my cousin gave me this past summer to try to save for her. I've had them stored in the shed for a winter project LOL. They were white, at least at one time they were white, but they had very pronounced dirty yellow stains, large body marks and the pillow cases were even worse. It is very hard to get body oils that built up into hard wax and sat for over 40 years out. First I did a hot prewash, normally I would prewash in cool to luke warm, but these needed hot, and about 1/8'th cup of Tide from Vietnam. ..part way into the prewash I let them soak an hour. When this was done I refilled washer with hot..and I added soup pots of boiling water until I got the temp up above 150 deg f..added 1/3'rd cup Tide from Vietnam and let wash 10 minutes, shut off for 3 hours and resumed....what do you think I found when they were finially done? Clean and fresh scented sheets and pillowcases. .yes for sure I did. now because my cousin only uses free and clear detergent I did go ahead and wash them again with Mich's ALL Free Pods..Your Tide worked fantastic Larsi..I really had very little hope that I could save these sheets, oh I could have did a boil wash on the stove but I was pushing my luck at 150 degrees let alone boiling them..they are over 40 years old the elastic on the bottom sheets wouldn't have held up to extreme temps. So I have to give Tide from Vietnam two thumbs up. If it ever comes to my area you can bet I will buy it. Thanks a lot Larsi..you reaffirmed my cousins belief that I'm a laundry wizzard. LMAO.