AJ doesn't think she can do any tastings today. As a student she had a bad time on tequila once and she's never touched it since, even the smell makes her wince. Can Jane Peyton the drinks expert, Susie, a self-confessed margarita fan and our friends from Vivir and Mijenta change her mind?

What is a shrub? Have the FoodTalk team gone gardening? No, Henry Chevallier Guild of NonSuch Shrubs joins AJ, Susie and Jane Peyton to explain all about this most ancient of drinks. Naturally they're vinegar-based but if you're from the Aspall dynasty that's been making vinegar and cider since 1728, that's not really a problem. We also taste the divine vinegars made by Francine Lee of Bumblee's in her Somerset kitchen.

AJ and Susie are joined by Jane Peyton the drinks expert this week to talk about Japanese sake wine made from rice. They all admit they know next to nothing about it, but Jane does explain about koji, the fungus that breaks down the rice starch into fermentable glucose. It influences the aroma and flavour apparently. They go in for a good old tasting of different sakes but realise they need to know much more about this mysterious drink. 

Ultra convenience and almost zero food waste, is this the food solution that has supermarkets on the run? Ollie Lloyd and Susie talk to Timo Boldt from Gousto. He started his company ten years ago and has been offering an alternative to the supermarket ever since then.

Customers can choose from a huge selection of online recipes, then the ingredients (in the correct amount) appear on their doorstep ready to cook. As well as offering high levels of personalisation, this could be the ultimate low-waste business – Gousto boasts an impressive 0.35% waste rate in the supply chain and factory. Could this be the shopping mechanism of the future?

There are now so many media channels to choose from that it's really hard to work out where to get the most bang for your buck. Media expert Emma Liddiard of Global explains how to plan a media campaign and Henry Jeffreys the food writer tells Susie and AJ how to get your press release noticed.

Using AJ's knowledge of PR and marketing and Robyn Simms experience at Square Root Soda, Susie wants to understand the pros and cons of using a brand ambassador to promote your foodie product. Should you use a brand ambassador such as Donald Trump, Gary Lineker or Wallace and Gromit or hire an influencer?

Susie always does it, but AJ doesn't always have the time. Yes, we're talking about the importance of breakfast and why you must top up your protein every day. But can good nutritious snacking help your gym session or sporting performance? Scott Chassels of Fuel10k and Susan Gafsen of Pep & Lekker are on hand to give us some advice.

Susie and AJ go paleo and tuck into pork scratchings and beef jerky. Founders Nick Coleman of Snaffling Pig and Will Yates of Billy Franks explain how they make the traditional high protein meaty snacks and discover that pork scratchings are quite possibly the oldest snack on earth.

Philli Armitage-Mattin is a Masterchef finalist and famous for her love of Asian flavours. She invited Susie and AJ to her new pop up venture at the Intercontinental in London's poshest address, Park Lane, right in the middle of Mayfair. We also revisit Susie's interview with the lovely Anna Haugh of Myrtle restaurant in Chelsea who is about to take over from Monica Galetti on MasterChef: The Professionals.

Susie and AJ don't really know what a B Corp is, but they know that more and more consumers want to know where their food comes from and that it is being sourced and made responsibly. Enter Guy Tullberg of Tracklements and Jonathan Parker of Foodari who can both demonstrate why sustainability and good ethical practices make good business sense.