Let's be honest, Guinness drinkers can be a picky bunch and no other pint is open to just as much scrutiny when it comes to the perfect pour.

No one knows this more than Sarah Love, 35, from Springburn, more commonly known by her Instagram handle @Girl_Drinks_Guinness, who dedicates her spare time to rating pints of the beloved Irish stout all over Glasgow.

She said: “It all started when I was over visiting my cousin in Belfast. We were going to a few different bars, ordering pints of Guinness, and started to notice how different they tasted in each place. Some were really good and others not so much.

“My cousin suggested that I should start posting about all the different experiences. I wasn’t sure if anyone would actually be interested but I gave it a go.

“I thought it would be something fun to do for a few weeks and that I might be lucky enough to get a couple of hundred followers but now I don’t ever want to stop.”

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Launching her page in September 2020, Sarah quickly began to gain followers thanks to her down to earth and honest reviews.

So, what does the expert say we should be searching for in the perfect pint? Sarah said: “I would say you want to taste notes of chocolate and it should be served to you when it’s still settling so that you get to watch what it does.

“You should also watch out for a domed head because that’s only achieved when the pint has been poured right.

“The glass should be spotless as well, that’s really important.”

The great glass debate is often discussed in the Guinness drinking community and is something that Sarah considers in each of her reviews.

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She said: “If it’s served in a really bad glass I would be more inclined to knock it down a point. If it tastes good then that’s the most important thing, but I’ll always say that I  think it should be served the way it’s intended to be.”

Bad reviews are an unfortunate part of the process and not something that Sarah shies away from. She said: “I would never take down a bad review, but I do always say that it’s only my personal opinion and that every pint is different. It’s important to be honest.

“If the pint is thin, watery, bitter and metallic tasting then it’s just no good. How it’s poured is really important because it’s a unique process. It can’t be poured at the same speed as a pint of Tennent’s.

“I do always say if it’s a bad review that it’s not a bad reflection on the pub. It’s so important to me to make a big deal of that because I don’t want any bars to lose business.”

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Running @Girl_Drinks_Guinnes has Sarah introduced to a whole new community of online Guinness fans, an outcome that she could never have anticipated.

She said: “I’ve started to get a lot of messages from people all over the world asking where they should go for a Guinness when they visit Glasgow which is really cool.

“Then recently a friend told me someone had said to her at a barbeque ‘Have you seen that girl that reviews Guinness on Instagram?’ meaning me, so it’s crazy to think that people who I don’t know are talking about it."

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As her popularity grows Sarah, who works in a bridal shop, makes a real effort her Instagram is kept up to date with her latest finds.

She said: "When I’m working, I’ll usually try to fit in a couple of pints at the weekend and hit a couple of different places.

"It's not always easy to find the time but I do still have a big list of places I want to visit.

I don’t plan on stopping anytime soon, I really enjoy it, it's great fun.”

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If you're looking for a tip-off on the best place to head for a cold one this weekend, then we've collected the names of five Glasgow bars which Sarah has rated highly. See the list below:

1. Bon Accord - North Street - Rating 10/10

2. The Park Lane - Hope Street - Rating 10/10

3. Wintergills - Great Western Road - Rating 9/10

4. The Woodside Inn - Maryhill Road 9/10

5. The Alpen Lodge - Hope Street - Rating 9/10 

Please remember to always drink responsibly and adhere to Scottish Government's guidelines on alcohol consumption.