The phrase "a safe formula" is correct and usable in written English.
It can be used when referring to a method or approach that is reliable and poses minimal risk.
Example: "In our experiments, we found that using a safe formula consistently yielded positive results without any adverse effects."
Alternatives: "a reliable method" or "a secure approach".
The musical represented both a commercial and an artistic risk: an earlier Off Broadway run received mixed reviews, and the thrust of the work — setting the infamous Alabama rape trials from the 1930s to music and presenting them subversively as a minstrel show — was hardly a safe formula.
That was considered a safe formula because, based on historical market performance, withdrawals at the 4%-rule rate wouldn't exhaust the portfolio even after 30 years.
There are a few notable exceptions to the safe formula.
This is not a fail-safe formula, but a reasonable long-term approach that can have impacts of great importance.
"Heist" is cleverer and more unusual than "The Evidence," but it, too, ignores demographic shifts to focus on a safe biracial formula that dates back to Bill Cosby's days on "I Spy".
Care before 2007 involved a nutritional program, which provided milk formula and accessories for safe formula preparation to children above 6 months of age.
The physical sacrifice involved in breastfeeding was part of this, but the logistical and financial burdens of raising a baby with all the appropriate products (safe food, safe diapers, safe formula, etc).
She has not found a fail-safe formula, and she is not a fail-safe songwriter.
Families are trying to buy safe formula from abroad.
Describing the complex strategies, she relied upon to secure safe and high-quality infant formula as well as other baby products, she noted, "Being a mother, you are definitely willing to spend money to buy the best [for your baby]. 8 In this way, diligent purchases of safe formula could signify motherly commitment as much as breastfeeding did.
We found that preparation and storage of safe formula were inadequate despite the counseling and support given by the program.
